It was a great experience...I've travelled many times to Bangkok, but most were very short so i stayed in hotels. This time I have to stay for a whole month, so I chose bnb considering the budget. Alex's place gave me an exceptional experience, I really like this apartment much more than the commercial hotels I've stayed before. I felt like living as a local Thai.
There's a wet market nearby, many choices of cuisine around, BTS is a short walking distance. The apartment itself is in an old building, but it's kept in very good condition, little buds are unavoidable everywhere here but it does not cause any problems for me.
Alex is also helpful and responsive, I had little issues and he always got back to me very quickly. I arrived in Bangkok very late at night, but he kindly offered to find a cab in advance so I don't have to worry about transport at night time.
Overall a very good experience and I'll definitely recommend this accommodation to everyone.